Honeywell S437A1025/U Sail Switch 120V 8A 1-1/2 in. x 4 in. Sail

Product Description

The HONEYWELL S437A1025/U Sail Switch is designed to respond to air velocity in heating or warm air ducts, such as those found in farm crop dryers. This 1 SPST switch completes a 24V or line voltage burner control circuit when the blower or fan achieves a preset air velocity, typically between 1900 fpm and 2250 fpm. It features a 1-1/2 inch x 4 inch sail and a 3-1/2 inch insertion length.

• Micro Switch snap switch is operated by metal sail inserted in an air stream.
• Sail can be trimmed to one-half the original size to double the velocity required to close the snap switch contacts.
• Switch differential can be manually adjusted by turning a knurled knob on the snap switch.

Product Highlights

Responds to air velocity in HVAC ducts, activating burner control circuits.

Product Information

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: S437A1025/U
• Country of Origin: Mexico

Technical Specifications

• Switching Type: 1 SPST
• Operating Velocity: 1900 fpm-2250 fpm
• Sail Dimensions: 1-1/2 in. x 4 in.
• Insertion Length: 3-1/2 in.
• Application: Sail Switch
• Dimensions: 2 15/16 in. high x 3 3/4 in. wide x 2 in. deep
• UL Approval: File: MP2618
• CSA Approval: Guide: MFHZ
• Maximum Operating Temperature: 150 F Maximum
• Contact Ratings AFL: 8.0 A @ 120 Vac; 5.1 A @ 240 Vac; 2.0 A @ 24 Vac; 15.0 A @ 6 Vdc; 7.5 A @ 12 Vdc
• Contact Ratings ALR: 48.0 A @ 120 Vac; 30.6 A @ 240 Vac
• Category: Commercial Building Controls
• Product Classification: Commercial Switches and Timers
• Style: Commercial Switches and Timers
• Product Type: Pressure Control
• Overall Width: 1-7/8 in
• Overall Length: 2-1/4 in
• Standards: Class 4813; Listed S; LR95329
• Configuration: 1 SPST with Case and Cover